The thyroid gland is a small, butterfly-shaped gland located just below the Adam's apple. The thyroid produces hormones that affect the body's metabolism and energy level. Thyroid problems are among the most common medical conditions. The most common thyroid problems are.

Hyperthyroidism : Over activity of the thyroid gland The common symptoms are

Jitteriness, shaking, increased nervousness, irritability

Rapid heartbeat or palpitations

Feeling hot

Weight loss

Fatigue, feeling exhausted

More frequent bowel movements

Shorter or lighter menstrual periods

Hypothyroidism: under activity of thyroid gland. The common symptoms are

Fatigue or lack of energy

Weight gain

Feeling cold

Dry skin and hair

Heavy menstrual periods

Constipation

Slowed thinking

Thyroid Nodules

Thyroid nodules are fairly common and usually harmless. However, about 4% of nodules are cancerous, so further testing needs to be done.